Question

Here is information about the sandwiches sold by a cafe. Half of the tuna sandwiches were on white bread. 25% of the ham sandwiches were sold on brown bread. There were 20 more whitre bread sandwiches sold than brown bread. Complete the two-way table.

Answer 1

Given :

Half of the tuna sandwiches were on white bread

25% of the ham sandwiches were sold on brown bread

There were 20 more white bread sandwiches sold than brown bread.

To Find :

The two way equation

Solution :

Let The number of tune sandwiches = t

Let The number of ham sandwiches = h

let The number of white sandwiches = w

Let The number of brown sandwiches = b

So,

According to question

Number of white sandwiches sold = 20 + number of brown sandwiches sold

i.e  w = 20 + b              ..............1

half of  the tuna sandwiches were on white bread

i.e   $\dfrac{t}{2}$ = w          ............2

And

25% of the ham sandwiches were sold on brown bread

i,e  25 % of h = b

Or, $\dfrac{25}{100}$  × h = b

Or,    b = 0.25 h             .........3

From eq 1 , 2 and 3 , we can get

   $\dfrac{t}{2}$   = 20 + 0.25 h            

Or,  $\dfrac{t}{2}$   = 20 + $\dfrac{25}{100}$  × h

Or,   $\dfrac{t}{2}$  = 20 + $\dfrac{h}{4}$

i.e  $\dfrac{t}{2}$  - $\dfrac{h}{4}$ = 20

Taking LCM

  $\dfrac{2t - h}{4}$ = 20

i.e  2 t - h = 80

Hence, The equation which complete in two is 2 t - h = 80  Answer

Answer 2

Answer:

Read step by step (copy answers!)

Step-by-step explanation:

Frequency table:

                    Tuna             Cheese          Ham         Total

Brown             21                     11                    8                40

White              21                     15                  24               60

Total                42                     26                 32              100